Plow-depressing means.



WWO

. M. EISENSCHENK.

PLOW DEPHESSING MEANS.

APPLICATION FILED SEPT. 2; 1915.

1,171,776. Patented Feb. 15,1916.

3 SHEETS-SHEET I.

gvwewtoz M l/14013 A M. EISENSCHENK.

v PLOW DEPRESSING MEANS.

APPLICATION FILED SEPT. 2. 1915.

1,171,776. Patented Feb. 15,1916.

-3 SHEETS-SHEET 2.

abhor/"e1 JZZz'aezwckezzZ Y M. EISENSCHENK.

PLOW DEPRESSlNG MEANS.

APPLICATION FILED SEPT. 2. 1915.

1,171,776. Patented Feb. 15,1916.

3 SHEETS-SHEET 3.

I UNITED STATES PATENT OFFICE.

MICHAEL EISENSGHENK, OF CbLD SPRING, MINNESOTA.

PLOW-DEPRESSING MEANS.

Application filed September 2, 1915 Serial No. 48,691.

To all whom it may concern:

Be it known that 1, MICHAEL EISEN- SCHENK, a citizen of the United States, residing at Cold Spring, in the county of Stearns and State of Minnesota, have invented certain new and useful Improvements in Plow-Depressing Means; and I do declare the following tobe a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and. use the same.

My invention relates broadly to improve ments in agricultural implements, and more particularly to means for. depressing the plows proper of gang plows yieldably into the earth, whereby in case said plows come in contact with rocks or other obstructions they may yield upwardly without breakage to any parts of the machine. I

. The object of-the invention is to provide very simple and inexpensive construction for attaining the above end in a highly advantageous and eflicient' manner.

WVith this object in View, the invention resides in certain novel features of construction and in unique combinations of parts hereinafter fully described and claimed.

In describing the invention, 1 shall refer to the accompanying drawings wherein like reference characters designate corresponding parts through the several views and wherein I Figure l is a side elevation of a gang plow equipped with plow depressing means constructed in accordance with this invention; Fig. 2 is a top plan view with parts eliminated for the sake of clearness; Fig. 3 is a perspective view of the usual plow depressing rock shaft, showing the application of an additional arm to the plow raising foot lever thereof; and Fig. 4 is aperspective view of portions of the gang plow showing the application of the improved plow depressing means thereto.

In these drawings, which constitute apart of the application, the numeral 1 indicates the portable frame of a gang plow upon which the front and rear crank shafts 2 and 3 are disposed, said shafts supporting the usual vertically movable beams 4: of the plows proper 5, these plows beingraised or depressed at will by proper actuation of a horizontally disposed transversely extending rock shaft 6 having in conjunction with one of its ends, a crank arm 7 connected by link means 8 to one ofthe beams 4, a plow depressing foot lever 9' likewise acting inconjunction with this end of the rock shaft whereby movement of said lever in the proper direction will depress the beams 4: simultaneously and the plows 5 carried thereby. Disposed at the opposite end of the rock shaft 6, is a rearwardly extending foot lever 10 which when depressed raises the crank arm 7 to lift the beams t and the plows carried thereby, while designed for the same purpose, but for actuation hand power, is an uprightlever 11.

' cient pressure cannot be placed upon the foot lever 9 to retain the plows the necessary depth in the ground, while. if such Specification of Letters IEatent. Patented Feb. 15, 1916.

plows be locked in lowered position by the hand lever .11, and they come in contact with obstacles, breakage invariably takes place. Furthermore, these disadvantages are encountered when an insufficient, number of draft animals used and the driver walks by the machine rather than vride ditions, the foot lever 9 cannot beactuated,

'8') thereon. Needless to say, under such conand if the hand lever 11 is locked in position to depress'the plows 'into the earth, danger of breakage occurs. It is to overcome these most objectionable features of the present day horse-drawn gangplow, that I have primarily designed the invention. Tov this end, an upstanding arm 12 is rigidlysecured to the foot lever 10 or directly'to the shaft .6, whereby forward movement of this arm 7 .w1ll rock sald shaft in a direct on toforce];

the crankarm 7 downwardly, thus depressing the plows into the earth. For somoving the arm 12, spring means 18 is provided, such means being shown in the present application in the form of a single tensible coiled spring having its rear end connected by any preferred means to the arm 12,while its front end is so connected to the crank arm 14 of the upstanding hand lever 15',

such crank arm being connected by a rock shaft or the'like-16 to saidlever.

Therock shaft 16 is rotatably mounted in an appropriate bearing 17 and constitutes the fulcrum of the lever, the bearing 17 being carried by an appropriate anchor mem-' her 18 which is detachably secured to. the.

front left hand corner of the frame 1 and which is provided immediately adjacent one end of the bearing 17 with a segmental rack 19 coacting with the locking dog 19 of the lever 15, said lever being equipped with hand means 20 for releasing the dog and movement of the lever. 15 will force the crank arm 14; forwardly thus placing the spring 13 under tension, which tension is exerted to depress theplows into the earth the necessary amount for tillingsoil inwhich only a few stones and the like prevail, it being understood that if one or both of the plows strike obstructions, they may yield upwardly from the earth without danger of breakage to any parts of the machine, this being due to thetensibility of the spring 13.

sional tension spring is carried by the anchor member 18, such spring being provided at one end with a laterally extending arm 23 which has connection with the lever 15 through the instrumentality of the link 24, the torsional tension of the spring beingnormally exerted. to forcethe arm 23 forwardly, thereby retaining the lever 15 in substantially upright position if the dog 19 be retracted, and thereby placing the spring 13 under the proper tension. WVhen now this spring 13 must yield small amounts for allowing the plows to move upwardly to slight extents only, the spring 22 will merely retain the lever 15 in proper upright position, but if strain so great as to have a tendency to snap the spring 13 be placed thereon, the crank arm it will be shifted rearwardly, thus so shiftingthe lever 15 against the tension of said spring 22, the latter being now placed under more forcible tension than previously and serving to again return the parts to their normal positions after the plows have passed the obstruction.

The anchor memberlS may be of practically any preferred formation, but as shown in the drawings it comprises two end plates or sections 18 and 18 respectively, bolted or otherwise secured at their lower ends to the frame 1, the spring 22 being interposed between the two plates and having plishing probably the best results, and'in:

strict me.

itsend remote from the arm 23, anchored in any preferred manner. This construction is preferable on account of its extreme simplicity, durability, and efficiency, but it need. not be followed too closely, since practically a any preferred means at this point would. ac-

complish the desired results.

From the foregoing description, taken in connection with the accompanying drawings, it will be evident that although very simple construction has beenprovided :*for carrying out the object of the invention, the improved parts will be highly efficient iin operation and will possess a number of ad-f vantageous features. Furthermore, such parts may be easily secured to most types of horse-drawn gang plows now on the market In the drawings, certain specific details of construction have been shown for (ECG/0171'.

the foregoing such details have been described, but it will be evident that I need not be limited thereto otherwise than tothe extent to which a the appended claims re-' I'claim:

1. A plow depressing attachment for gang 1 plows including an anchor member to be 1 attached to the plow frame, a coiled torsional spring anchored to said member, an arm 95. projecting laterally from said spring, (and a lever fulcrumed to said member and hav-' ing connection with said arm, thelever being adapted for connection with the plow depressing means of the plow.

2. A plow depressing attachment forgang plows comprising an'anchor member for attachment to the frame of'the-p'low, a seg-, mental rack carried by said member, aplow depressing lever fulcrumedon said member 1 and having a dog coacting with said rack, and a coiled spring carried by the member and'havingconnection with said lever.

3. A plow depressing, attachment for gang plows comprising an anchor member for at-; tachment to the'frame ofthe plow,- a segmental rack carried by said member, a plow depressing lever fulcrumed on said member and having a dog coasting with said rack, a coiledtorsional spring carried by said member, and an arm projecting laterally from said spring'and having connection with the lever.

4:- Plow depressing means comprising-a shaft to be rocked forwardlyto -move the plows downwardly, an arm having connection with said shaft and rising'therefr'om, an additional uprightarm in advance-of the other arm, spring means for yieldably retaining the secondarmin upright position, and a connection between the two arms.

Plow depressing means comprising a shaft to berocked forwardly to move the plows downwardly, anarm havingiconnec tion with said shaft: and rising therefrom,

tion between the two arms, a hand lever for operating the second arm at will, means for looking said lever against movement or for allowing it to swing freely, and a spring for yieldably holding the lever against movement when the locking means thereof is released. I

7. Plow depressing means comprising a shaft to be rocked forwardly to depress the plows, an arm having connection with said shaft and rising therefrom, a second arm mounted in advance of the shaft for oscillation longitudinally of the plow, a connection between the two arms, a hand lever for operating the second arm at will, means for locking said lever against movement or for allowing it to swing freely, a coiled torsional spring having one end anchored, and an arm rising from the other end of said spring and having connection with the lever, where by to hold the latter yieldably against movement when its locking means is released.

1 In testimony whereof I have hereunto set nesses.

MICHAEL EISENSCHENK.-

Witnesses:

J. B.- HIMSL, J. A. Lona.

.my hand in presence of two subscribing wit- Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patel-m.

Washington, D. 0. 

